EP1117574A1 - Wiper blade for cleaning vehicle windscreen - Google Patents

Wiper blade for cleaning vehicle windscreen

Info

Publication number
EP1117574A1
EP1117574A1 EP00952932A EP00952932A EP1117574A1 EP 1117574 A1 EP1117574 A1 EP 1117574A1 EP 00952932 A EP00952932 A EP 00952932A EP 00952932 A EP00952932 A EP 00952932A EP 1117574 A1 EP1117574 A1 EP 1117574A1
Authority
EP
European Patent Office
Prior art keywords
protective profile
wiper
wiper blade
blade according
profile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00952932A
Other languages
German (de)
French (fr)
Other versions
EP1117574B1 (en
Inventor
Paul Wynen
Dirk Herinckx
Jurgen Roekens
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1117574A1 publication Critical patent/EP1117574A1/en
Application granted granted Critical
Publication of EP1117574B1 publication Critical patent/EP1117574B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S2001/3843—Wiper blades equipped with removable cover or protective elements

Definitions

  • the invention is based on a wiper blade according to the features of the preamble of claim 1.
  • Known windshield wipers have a wiper arm which is constructed from a fastening part fastened to a drive axle, a joint part connected to the latter via a knee joint and a wiper rod rigidly adjoining the joint part. Furthermore, the windshield wiper has a wiper blade, which has a support bracket system and a wiper strip held by this. The wiper blade is articulated on the wiper arm in that a hook-shaped end of the wiper rod engages between two side cheeks of the support bracket system and comprises a hinge pin. The joint thus formed guides the wiper blade with the wiper strip over a motor vehicle window, the joint part and the support bracket system making it possible for the wiper strip to adapt to a curvature of the motor vehicle window. A required contact pressure of the wiper strip on the motor vehicle window is achieved with at least one tension spring, which the fastening part and the articulated partly clamped together with the wiper rod over the knee joint.
  • the wiper strip consists of an elastomer, e.g. a natural or synthetic rubber, or from ethylene propylene. It has a head strip which is connected via a tilting web to a wiper lip resting on the window to be wiped.
  • the wiper lip can flip over in the opposite direction at the reversal point of the wiping movement due to the tilting web, so that it always adopts a favorable angle to the windshield. If the wiper is actuated, the wiper strip with the wiper lip slides over the motor vehicle window, whereby it wears out due to friction between the wiper lip and the windshield.
  • environmental influences on the wiper strip such as temperature fluctuations, UV radiation, salt water, exhaust gases, etc., which can lead to premature material aging and increased wear.
  • the tape is more or less folded over the length of the wiper blade and is therefore able to adapt to the curvature of the windshield within certain limits.
  • the band acts as a wiper lip, which means that the wiper system can be used to clean the windshield during maneuvering operations without wearing out the actual wiper strip on the wiper blade.
  • the flexible tape is often exposed to high temperatures during preservation processes of the motor vehicle. The tape becomes brittle, the elasticity is reduced, the folding process is hindered and the wiping quality deteriorates.
  • the wiper blade support bracket system allows the
  • Wiper strip curvatures of the windshield is adjustable.
  • the function of the support bracket system blocked in the case of rigid protective profiles can be used for the protective profile by means of a protective profile which is formed from an elastic material and can largely, preferably completely, adapt to the windshield due to elastic deformation.
  • the wiping element fastened to the protective profile with a base side lies evenly over the length of the wiper blade on the windshield during the wiping movement and good wiping quality can be achieved. It is not necessary to flip the wiping element over to adapt it to the windshield. Instead of a high, thin lip that quickly becomes brittle when exposed to heat, a wiping element can be used that has an almost square, trapezoidal or triangular cross-sectional area.
  • the wiping element Due to the material accumulation, the wiping element is resistant to environmental influences and in particular heat and essentially retains its properties. In principle, however, the turning over of a high wiping element and / or the plastic and elastic deformation of the wiping element can be used to support the elastically deformable protective profile in order to better adapt the wiping element to the curvatures of the windshield.
  • the wiping element is preferably made from a thermoplastic elastomer, ie from a combination of a thermoplastic and an elastomer. With such a combination, particularly heat-resistant materials can be achieved, which can adapt well to the curvatures of windshields by means of plastic and elastic deformation. Despite heat treatment at high temperatures or preservation of the motor vehicle, good wiping quality can be achieved with the wiping element.
  • the moment of resistance of the protective profile and the ability to adapt to different curvatures of the windshield when wiping depends on the material and the cross-sectional geometry of the protective profile.
  • the protective profile is preferably made of elastic plastic, such as in particular polypropylene, which remains elastically deformable at high temperatures, up to about 80 ° C. Plastic is inexpensive, light and can be processed well. In principle, however, the protective profile can also be made partially or completely from metal.
  • the protective profile has a tubular or sleeve-shaped, elongated profile that surrounds the wiper strip with two side walls and with claw-like attachments on the wiper strip or is attached to the wiper blade.
  • a cross-sectional geometry is proposed in which the profile tapers from the wiper strip in the direction of the windshield and each side cheek has one or more, preferably two, turning points.
  • the turning points form starting points for elastic deformation, which favors this.
  • the elastic deformability is supported by a rounded, preferably pear-shaped profile to the windshield and by a wall thickness of less than 0.8 mm.
  • the protective profile In order to securely secure the protective profile to the wiper blade and to protect the wiper strip on the side from environmental influences, it is known to weld the protective profile on the side.
  • the protective profile is heated on the side faces and pressed against a plate.
  • a material plate is created that closes the protective profile, but also stiffens it.
  • Protective profile for assembly and disassembly can advantageously be opened and closed several times.
  • the cover can be placed on the protective profile and fastened to the protective profile by means of a releasable non-positive and / or positive connection.
  • the cover can be captively connected to the protective profile and can be fixed in a closed position and / or in an open position by means of latching means, for example in the case of a cover which is captively connected to the protective profile by means of a rotary movement or in the case of a cover which a rail is connected to the protective profile, by a linear movement, etc.
  • the assembly and disassembly of the protective profile is made easier with the cover according to the invention, and in particular a stiffening of the protective profile at the side can largely be avoided and the elastic deformability can be maintained, for example by fastening the cover with play, being displaceable within limits and / or only partly against the protective profile.
  • the elastic deformability can be maintained by not reshaping the entire end face to form a material plate, but rather closing the protective profile with a protrusion directed inwards transversely to the longitudinal direction and molded onto a side cheek of the protective profile.
  • the protrusion is introduced, for example, by a heat source or preferably by an ultrasound source.
  • Fig. 1 shows a section of a wiper blade
  • Fig. 2 shows a section along the line II-II in
  • Fig. 3-5 variants of a protective profile according to Fig. 2
  • Fig. 6 shows an enlarged detail VI in Fig. 1
  • Fig. 7 shows a section along the line VII-VII in
  • FIG. 8 a cover
  • FIG. 10 shows a variant of a protective profile according to FIG. 1
  • FIG. 11 shows a section along the line XI-XI in FIG
  • FIG. 10 and FIG. 12 a section along the line XII-XII in FIG. 10.
  • Fig. 1 shows a section of a wiper blade
  • Support bracket system 10 has a main bracket 46 which is articulated to intermediate brackets 48, at the ends of which claw brackets 50, 52 are articulated.
  • a wiper strip 12 is fastened in holding claws 54 of the claw brackets 50, 52.
  • a protective profile 14 to which a wiper element 16 is attached to the windshield.
  • the protective profile 14 is made of an elastic plastic, namely of polypropylene and is adaptable to the curvature of the pane by elastic deformation.
  • the protective profile 14 has an elongated hollow profile with two side walls 24, 26 surrounding the wiper strip 12, which is fastened to the wiper strip 12 in the region of a tilting web 88 with claw-like projections 84, 86 and tapers from the wiper strip 12 in the direction of the windshield (FIG. 2).
  • Each side wall 24, 26 has two turning points 28, 30, 32, 34, which Create clauses for elastic deformation and promote this. Several turning points are also possible, for example corrugated side walls.
  • the elastic deformability is supported by an overall pear-shaped profile which is rounded off from the windshield and by a wall thickness 36 of less than 0.8 mm.
  • the wall thickness 36 is advantageously constant in the exemplary embodiment shown, 0.6 mm, but can be varied.
  • the wiping element 16 While the protective profile 14 is being extruded, the wiping element 16 is simultaneously extruded onto the protective profile 14, so that the wiping element 16 is fastened to the protective profile 14 via a chemical compound. With this method, a good connection is achieved without any special effort. However, it is possible to connect the protective profile and the wiping element in a force-locking, form-fitting and / or material-locking manner, for example by plugging, gluing, welding, etc.
  • the wiping element 16 is made of a thermoplastic elastomer, ie a combination of a thermoplastic and an elastomer.
  • the wiping element 16 has an almost square cross-sectional area and, due to the material accumulation, is resistant to environmental influences and in particular heat.
  • FIGS. 4 and 5 show protective profiles 14 with wiping elements 20, 22 which, on the side facing the protective profile 14, consist of a trapezoidal area 38, 40 and assemble on the side facing the windshield from a rectangular area 42, 44.
  • Both wiping elements 20, 22 are running high, so that can be used when wiping the windshield whose Umlegevorgang favorable to adapt to curvatures of the windshield, zusharm ⁇ lich for the elastic deformation of the protection profile 14.
  • DC permanent components are always numbered with the same reference numerals.
  • With the trapezoidal area 38, 40 which is higher in FIG. 4 than in FIG. 5, a large connecting area between the protective profile 14 and the wiping element 20 and 22 is achieved and a secure connection is made possible.
  • high heat resistance is achieved in the upper areas, which are more strongly stressed by bending stresses.
  • FIG. 6 shows an enlarged detail VI in FIG. 1.
  • the protective profile 14 is closed in the longitudinal direction at both ends with a plastic cover 56.
  • the cover 56 is placed on the protective profile 14 and releasably connected to it by means of three pins 66, 68, 70, which bear against the inside 72 of the protective profile 14, and via a collar 76 resting on a cover side 74 of the protective profile 14 (FIG. 7 , 8 and 9).
  • the protective profile 14 is securely attached to the wiper blade, the wiper strip 12 is laterally protected from environmental influences and the protective profile 14 is easy to assemble and disassemble with the covers 56.
  • a protective profile 14 closed on both sides with at least one cover 56 can be reused after dismantling.
  • the elasticity of the protective profile 14, which only partially abuts against it, is only slightly influenced by the cover 56.
  • the side cheeks 24, 26 can deflect inwards without being obstructed by the cover 56 (FIG. 7).
  • a protective profile 58 is shown in FIGS. 10, 11 and 12, the ends of which are closed with projections 62, 64 directed inwards transversely to the longitudinal direction.
  • the projections 62, 64 are preferably introduced into a side cheek 60 of the protective profile 58 using an ultrasound source.
  • the length ' of Projection 62, 64 decreases in the direction of the windshield so that an approximately constant gap 78 is formed between the projection 62, 64 and the side cheek 26, through which the wiper strip 12 can be guided non-destructively during assembly and disassembly (FIG. 11).
  • the projections 62, 64 taper transversely to the longitudinal direction and have a first flatter bevel 80 of 30 ° inclined inwards in the longitudinal direction on the end face, which directs the wiper strip 12 in the direction of the gap 78 during assembly and facilitates the assembly (FIG. 12) , Furthermore, the projections 62, 64 have in the longitudinal direction
  • a second outward inclined, steeper slope 82 of 10 ° which ensures that the protective profile 58 is firmly held during operation of the wiper on the wiper strip 12 and facilitates non-destructive dismantling.
  • the protective profile 58 is secured captively and reusably on the wiper blade and the wiper strip 12 is laterally protected against environmental influences.
  • the projections 62, 64 extend only over a small part of the circumference of the protective profile 58, so that the elastic deformability is only insignificantly impaired.

Abstract

The invention relates to a wiper blade for cleaning vehicle windscreens comprising a wiper strip (12) supported by a carrier bracket system (10). Said wiper is surrounded by a protective profile (14, 58), a wiper element (16, 18, 20, 22) being fastened on the side facing the windshield. According to the invention, the protective profile is made of an elastic material (14, 58) and substantially adapts to the curvatures of the windscreen by elastic deformation.

Description

Wischblatt zum Reinigen von Scheiben an KraftfahrzeugenWiper blade for cleaning windows on motor vehicles
Stand der TechnikState of the art
Die Erfindung geht von einem Wischblatt gemäß den Merkmalen des Oberbegriffs des Patentanspruchs 1 aus.The invention is based on a wiper blade according to the features of the preamble of claim 1.
Bekannte Scheibenwischer besitzen einen Wischarm, der aus einem auf einer Antriebsachse befestigten Befestigungsteil, ei- nem mit diesem über ein Kniegelenk verbundenen Gelenkteil und aus einer sich an das Gelenkteil starr anschließenden Wischstange aufgebaut ist. Ferner besitzt der Scheibenwischer ein Wischblatt, das ein Tragbugelsystem und eine von diesem gehaltene Wischleiste aufweist. Das Wischblatt ist am Wischarm angelenkt, indem ein hakenförmiges Ende der Wischstange zwischen zwei Seitenwangen des Tragbügelsystems greift und einen Gelenkbolzen umfaßt. Das so gebildete Gelenk führt das Wischblatt mit der Wischleiste über eine Kraftfahrzeugscheibe, wobei das Gelenkteil und das Tragbugelsystem es ermögli- chen, daß sich die Wischleiste einer Wölbung der Kraftfahrzeugscheibe anpaßt. Ein erforderlicher Anpreßdruck der Wischleiste auf der Kraftfahrzeugscheibe wird mit mindestens einer Zugfeder erreicht, die das Befestigungsteil und das Gelenk- teil gemeinsam mit der Wischstange über das Kniegelenk verspannt .Known windshield wipers have a wiper arm which is constructed from a fastening part fastened to a drive axle, a joint part connected to the latter via a knee joint and a wiper rod rigidly adjoining the joint part. Furthermore, the windshield wiper has a wiper blade, which has a support bracket system and a wiper strip held by this. The wiper blade is articulated on the wiper arm in that a hook-shaped end of the wiper rod engages between two side cheeks of the support bracket system and comprises a hinge pin. The joint thus formed guides the wiper blade with the wiper strip over a motor vehicle window, the joint part and the support bracket system making it possible for the wiper strip to adapt to a curvature of the motor vehicle window. A required contact pressure of the wiper strip on the motor vehicle window is achieved with at least one tension spring, which the fastening part and the articulated partly clamped together with the wiper rod over the knee joint.
Die Wischleiste besteht aus einem Elastomer, z.B. einem Na- tur- oder Synthesekautschuk, oder aus Äthylenpropylen. Sie hat eine Kopfleiste, die über einen Kippsteg mit einer auf der zu wischenden Scheibe aufliegenden Wischlippe verbunden ist. Durch den Kippsteg kann die Wischlippe im Umkehrpunkt der Wischbewegung in die entgegengesetzte Richtung umklappen, so daß sie stets einen günstigen Winkel zur Windschutzscheibe einnimmt. Wird der Scheibenwischer betätigt, gleitet die Wischleiste mit der Wischlippe über die Kraftfahrzeugscheibe, wobei sie sich durch Reibung zwischen der Wischlippe und der Windschutzscheibe abnutzt. Ferner wirken Umwelteinflüsse auf die Wischleiste, wie beispielsweise Temperaturschwankungen, UV-Strahlung, Salzwasser, Abgase usw., die zu einer frühzeitigen Werkstoffalterung und einem verstärkten Verschleiß führen können.The wiper strip consists of an elastomer, e.g. a natural or synthetic rubber, or from ethylene propylene. It has a head strip which is connected via a tilting web to a wiper lip resting on the window to be wiped. The wiper lip can flip over in the opposite direction at the reversal point of the wiping movement due to the tilting web, so that it always adopts a favorable angle to the windshield. If the wiper is actuated, the wiper strip with the wiper lip slides over the motor vehicle window, whereby it wears out due to friction between the wiper lip and the windshield. Furthermore, environmental influences on the wiper strip, such as temperature fluctuations, UV radiation, salt water, exhaust gases, etc., which can lead to premature material aging and increased wear.
Um sicher zu stellen, daß die Wischleiste in einwandfreiem Zustand ist, wenn ein neues Kraftfahrzeug ausgeliefert wird, ist bekannt, die Wischleiste mit einem Schutzprofil abzudek- ken, bevor das Kraftfahrzeug konserviert wird. Das Schutzprofil wird erst entfernt, wenn das neue Kraftfahrzeug nach ei- ner Endkonservierung einem Käufer übergeben wird. Wird jedoch die Windschutzscheibe bei einer Zwischenlagerung des Kraftfahrzeugs, bei der Konservierung usw. verschmutzt oder ist die Sicht durch Regen behindert, kann die Windschutzscheibe nicht zum rangieren des Kraftfahrzeugs mit der Wischanlage des Fahrzeugs gereinigt werden. Das Schutzprofil ist steif, hart und liegt nur teilweise auf der Windschutzscheibe auf. In der DE 30 05 965 AI wurde vorgeschlagen, auf der der Windschutzscheibe zugewandten Seite am Schutzprofil ein biegsames Band mit der Längskante zu befestigen. Das Schutzprofil besteht aus Hart-PVC und das Band aus Weich-PVC. Wird der Wi- scher betätigt, wird das Band über die Länge des Wischblatts mehr oder weniger umgelegt und ist dadurch in der Lage, sich in bestimmten Grenzen der Krümmung der Windschutzscheibe anzupassen. Das Band wirkt als Wischlippe, wodurch bei Rangiervorgängen die Wischanlage zur Reinigung der Windschutzscheibe genutzt werden kann, ohne die eigentliche Wischleiste des Wischblatts abzunutzen. Bei Konservierungsvorgängen des Kraftfahrzeugs wird jedoch das biegsame Band häufig hohen Temperaturen ausgesetzt. Das Band versprödet, die Elastizität wird reduziert, der Umlegevorgang behindert und die Wischqua- lität verschlechtert.In order to ensure that the wiper strip is in perfect condition when a new motor vehicle is delivered, it is known to cover the wiper strip with a protective profile before the motor vehicle is preserved. The protection profile is only removed when the new motor vehicle is handed over to a buyer after final preservation. However, if the windshield becomes dirty during temporary storage of the motor vehicle, for preservation, etc. or if the view is obstructed by rain, the windshield cannot be cleaned with the wiper system of the motor vehicle for maneuvering the motor vehicle. The protective profile is stiff, hard and only partially lies on the windshield. In DE 30 05 965 AI it was proposed to attach a flexible band with the longitudinal edge to the protective profile on the side facing the windshield. The protective profile is made of hard PVC and the band is made of soft PVC. If the wiper is actuated, the tape is more or less folded over the length of the wiper blade and is therefore able to adapt to the curvature of the windshield within certain limits. The band acts as a wiper lip, which means that the wiper system can be used to clean the windshield during maneuvering operations without wearing out the actual wiper strip on the wiper blade. However, the flexible tape is often exposed to high temperatures during preservation processes of the motor vehicle. The tape becomes brittle, the elasticity is reduced, the folding process is hindered and the wiping quality deteriorates.
Vorteile der ErfindungAdvantages of the invention
Das Tragbugelsystem des Wischblatts ermöglicht, daß dieThe wiper blade support bracket system allows the
Wischleiste Krümmungen der Windschutzscheibe anpaßbar ist. Durch ein Schutzprofil, das aus einem elastischen Material gebildet ist, und sich durch elastische Verformung Krümmungen der Windschutzscheibe weitgehend, vorzugsweise vollständig anpassen kann, wird die Funktion des bei steifen Schutzprofilen blockierten Tragbügelsystems für das Schutzprofil nutzbar. Das am Schutzprofil mit einer Grundseite befestigte Wischelement liegt während der Wischbewegung gleichmäßig über die Länge des Wischblatts auf der Windschutzscheibe auf und es kann eine gute Wischqualität erreicht werden. Ein Umlegen des Wischelements wird zur Anpassung an die Windschutzscheibe nicht benötigt. Statt einer hohen dünnen Lippe, die bei Wärmeeinwirkung schnell versprödet, kann ein Wischelement ver- wendet werden, das eine nahezu quadratische, trapezförmige oder eine dreieckige Querschnittsfläche aufweist. Das Wischelement ist durch die Materialanhäufung gegen Umwelteinflüsse und insbesondere Wärmeeinwirkung widerstandsfähig und behält im Wesentlichen seine Eigenschaften. Grundsätzlich kann jedoch das Umlegen eines hohen Wischelements und/oder das plastische und elastische Verformen des Wischelements unterstützend zum elastisch verformbaren Schutzprofil genutzt werden, das Wischelement Krümmungen der Windschutzscheibe besser an- zupassen. Vorzugsweise ist das Wischelement aus einem thermoplastischen Elastomer, d.h. aus einer Verbindung von einem Thermoplasten und einem Elastomer. Mit einer derartigen Kombination können besonders wärmebeständige Materialien erreicht werden, die sich durch plastische und elastische Ver- formung Krümmungen von Windschutzscheiben gut anpassen können. Trotz Wärmebehandlung mit hohen Temperaturen bzw. einer Konservierung des Kraftfahrzeugs kann eine gute Wischqualität mit dem Wischelement erzielt werden.Wiper strip curvatures of the windshield is adjustable. The function of the support bracket system blocked in the case of rigid protective profiles can be used for the protective profile by means of a protective profile which is formed from an elastic material and can largely, preferably completely, adapt to the windshield due to elastic deformation. The wiping element fastened to the protective profile with a base side lies evenly over the length of the wiper blade on the windshield during the wiping movement and good wiping quality can be achieved. It is not necessary to flip the wiping element over to adapt it to the windshield. Instead of a high, thin lip that quickly becomes brittle when exposed to heat, a wiping element can be used that has an almost square, trapezoidal or triangular cross-sectional area. Due to the material accumulation, the wiping element is resistant to environmental influences and in particular heat and essentially retains its properties. In principle, however, the turning over of a high wiping element and / or the plastic and elastic deformation of the wiping element can be used to support the elastically deformable protective profile in order to better adapt the wiping element to the curvatures of the windshield. The wiping element is preferably made from a thermoplastic elastomer, ie from a combination of a thermoplastic and an elastomer. With such a combination, particularly heat-resistant materials can be achieved, which can adapt well to the curvatures of windshields by means of plastic and elastic deformation. Despite heat treatment at high temperatures or preservation of the motor vehicle, good wiping quality can be achieved with the wiping element.
Das Widerstandsmoment des Schutzprofils und die Fähigkeit, sich bei der Wischbewegung unterschiedlichen Krümmungen der Windschutzscheibe anzupassen ist vom Material und von der Querschnittsgeometrie des Schutzprofils abhängig. Das Schutzprofil besteht vorzugsweise aus elastischem Kunststoff, wie insbesondere aus Polypropylen, das bei hohen Temperaturen elastisch verformbar bleibt, bis zu ca. 80°C. Kunststoff ist kostengünstig, leicht und kann gut verarbeitet werden. Grundsätzlich kann das Schutzprofil jedoch auch teilweise oder vollständig aus Metall gefertigt werden.The moment of resistance of the protective profile and the ability to adapt to different curvatures of the windshield when wiping depends on the material and the cross-sectional geometry of the protective profile. The protective profile is preferably made of elastic plastic, such as in particular polypropylene, which remains elastically deformable at high temperatures, up to about 80 ° C. Plastic is inexpensive, light and can be processed well. In principle, however, the protective profile can also be made partially or completely from metal.
Das Schutzprofil besitzt ein röhr- oder hülsenförmiges, lan- gestrecktes Profil, das mit zwei Seitenwangen die Wischleiste umgibt und mit krallenartigen Ansätzen an der Wischleiste oder am Wischblatt befestigt ist. In einer Ausgestaltung der Erfindung wird eine Querschnittsgeometrie vorgeschlagen, bei der sich das Profil von der Wischleiste in Richtung Windschutzscheibe verjüngt und jede Seitenwange ein oder mehrere, vorzugsweise zwei Wendepunkte aufweist. Die Wendepunkte bilden Ansatzpunkte für eine elastische Verformung, wodurch diese begünstigt wird. Ferner wird die elastische Verformbarkeit durch ein zur Windschutzscheibe abgerundetes, vorzugsweise birnenförmiges Profil und durch eine Wandstärke kleiner als 0,8 mm unterstützt.The protective profile has a tubular or sleeve-shaped, elongated profile that surrounds the wiper strip with two side walls and with claw-like attachments on the wiper strip or is attached to the wiper blade. In one embodiment of the invention, a cross-sectional geometry is proposed in which the profile tapers from the wiper strip in the direction of the windshield and each side cheek has one or more, preferably two, turning points. The turning points form starting points for elastic deformation, which favors this. Furthermore, the elastic deformability is supported by a rounded, preferably pear-shaped profile to the windshield and by a wall thickness of less than 0.8 mm.
Um das Schutzprofil verliersicher am Wischblatt zu befestigen und die Wischleiste seitlich von Umwelteinflüssen zu schützen, ist es bekannt, das Schutzprofil seitlich zu verschwei- ßen. Das Schutzprofil wird hierfür an den seitlichen Stirnseiten erwärmt und gegen eine Platte gedrückt. Es entsteht eine Materialplatte, die das Schutzprofil verschließt, jedoch dieses zudem versteift. In einer Ausgestaltung wird vorgeschlagen, das Schutzprofil in Längsrichtung zumindest an ei- nem Ende mit einem Deckel zu verschließen, mit dem dasIn order to securely secure the protective profile to the wiper blade and to protect the wiper strip on the side from environmental influences, it is known to weld the protective profile on the side. For this purpose, the protective profile is heated on the side faces and pressed against a plate. A material plate is created that closes the protective profile, but also stiffens it. In one embodiment it is proposed to close the protective profile in the longitudinal direction at least at one end with a cover with which the
Schutzprofil zur Montage und Demontage vorteilhaft mehrfach geöffnet und geschlossen werden kann. Der Deckel kann auf das Schutzprofil aufgesteckt und über eine lösbare kraft- und/oder formschlüssige Verbindung am Schutzprofil befestigt sein. Ferner kann der Deckel verliersicher mit dem Schutzprofil verbunden und über Rastmittel in einer Schließstellung und/oder in einer Öffnungsstellung fixierbar sein, beispielsweise bei einem Deckel, der über ein Gelenk mit dem Schutzprofil verliersicher verbunden ist, durch eine Drehbewegung oder bei einem Deckel, der über eine Schiene mit dem Schutzprofil verbunden ist, durch eine geradlinige Bewegung usw. Die Montage und Demontage des Schutzprofils wird mit dem erfindungsgemäßen Deckel erleichtert und insbesondere kann mit einem Deckel eine Versteifung des Schutzprofils seitlich weitgehend vermieden und die elastische Verformbarkeit beibe- halten werden, beispielsweise indem der Deckel mit Spiel befestigt, in Grenzen verschiebbar ist und/oder nur teilweise am Schutzprofil anliegt. Ferner kann die elastische Verformbarkeit beibehalten werden, indem nicht die gesamte Stirnseite zu einer Materialplatte umgeformt wird, sondern das Schutzprofil mit einem quer zur Längsrichtung nach innen gerichteten Vorsprung verschlossen ist, der in eine Seitenwange des Schutzprofils angeformt ist. Der Vorsprung wird beispielsweise durch eine Wärmequelle oder vorzugsweise durch eine Ultraschallquelle eingebracht.Protective profile for assembly and disassembly can advantageously be opened and closed several times. The cover can be placed on the protective profile and fastened to the protective profile by means of a releasable non-positive and / or positive connection. Furthermore, the cover can be captively connected to the protective profile and can be fixed in a closed position and / or in an open position by means of latching means, for example in the case of a cover which is captively connected to the protective profile by means of a rotary movement or in the case of a cover which a rail is connected to the protective profile, by a linear movement, etc. The assembly and disassembly of the protective profile is made easier with the cover according to the invention, and in particular a stiffening of the protective profile at the side can largely be avoided and the elastic deformability can be maintained, for example by fastening the cover with play, being displaceable within limits and / or only partly against the protective profile. Furthermore, the elastic deformability can be maintained by not reshaping the entire end face to form a material plate, but rather closing the protective profile with a protrusion directed inwards transversely to the longitudinal direction and molded onto a side cheek of the protective profile. The protrusion is introduced, for example, by a heat source or preferably by an ultrasound source.
Zeichnungdrawing
Weitere Vorteile ergeben sich aus der folgenden Zeichnungsbe- Schreibung. In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt. Die Zeichnung, die Beschreibung und die Ansprüche enthalten zahlreiche Merkmale in Kombination. Der Fachmann wird die Merkmale zweckmäßigerweise auch einzeln betrachten und zu sinnvollen weiteren Kombinationen zusammen- fassen.Further advantages result from the following description of the drawing. Exemplary embodiments of the invention are shown in the drawing. The drawing, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into useful further combinations.
Es zeigen:Show it:
Fig. 1 einen Ausschnitt eines Wischblatts, Fig. 2 einen Schnitt entlang der Linie II-II inFig. 1 shows a section of a wiper blade, Fig. 2 shows a section along the line II-II in
Fig. 1, Fig. 3-5 Varianten eines Schutzprofils nach Fig. 2, Fig. 6 einen vergrößerten Ausschnitt VI in Fig. 1, Fig. 7 einen Schnitt entlang der Linie VII-VII in1, Fig. 3-5 variants of a protective profile according to Fig. 2, Fig. 6 shows an enlarged detail VI in Fig. 1, Fig. 7 shows a section along the line VII-VII in
Fig. 6, Fig. 8 einen Deckel,6, FIG. 8 a cover,
Fig. 9 einen Schnitt entlang der Linie IX-IX in Fig. 8,9 shows a section along the line IX-IX in FIG. 8,
Fig. 10 eine Variante eines Schutzprofils nach Fig. 1, Fig. 11 einen Schnitt entlang der Linie XI-XI in10 shows a variant of a protective profile according to FIG. 1, FIG. 11 shows a section along the line XI-XI in FIG
Fig. 10 und Fig. 12 einen Schnitt entlang der Linie XII-XII in Fig. 10.10 and FIG. 12 a section along the line XII-XII in FIG. 10.
Beschreibung der AusführungsbeispieleDescription of the embodiments
Fig. 1 zeigt einen Ausschnitt eines Wischblatts, das einFig. 1 shows a section of a wiper blade, the one
Tragbugelsystem 10 aufweist mit einem Hauptbügel 46, der gelenkig mit Zwischenbügeln 48 verbunden ist, an dessen Enden Krallenbügel 50, 52 angelenkt sind. In Haltekrallen 54 der Krallenbügel 50, 52 ist eine Wischleiste 12 befestigt. Um die Wischleiste 12 gegen Wärme und sonstige Umwelteinflüsse vor der Auslieferung an einen Käufer zu schützen, ist diese mit einem Schutzprofil 14 umgeben, an dem zur Windschutzscheibe ein Wischelement 16 befestigt ist.Support bracket system 10 has a main bracket 46 which is articulated to intermediate brackets 48, at the ends of which claw brackets 50, 52 are articulated. A wiper strip 12 is fastened in holding claws 54 of the claw brackets 50, 52. In order to protect the wiper strip 12 against heat and other environmental influences before delivery to a buyer, it is surrounded by a protective profile 14 to which a wiper element 16 is attached to the windshield.
Das Schutzprofil 14 ist aus einem elastischen Kunststoff, und zwar aus Polypropylen und ist durch elastische Verformung Krümmungen der Scheibe anpaßbar. Das Schutzprofil 14 weist ein langgestrecktes Hohlprofil mit zwei die Wischleiste 12 umgebenden Seitenwangen 24, 26 auf, das mit krallenartigen Ansätzen 84, 86 an der Wischleiste 12 im Bereich eines Kippstegs 88 befestigt ist und sich von der Wischleiste 12 in Richtung Windschutzscheibe verjüngt (Fig. 2) . Jede Seitenwange 24, 26 besitzt zwei Wendepunkte 28, 30, 32, 34, die An- satzstellen für eine elastische Verformung bilden und diese begünstigen. Möglich sind auch mehrere Wendepunkte, beispielsweise gewellte Seitenwangen. Ferner ist die elastische Verformbarkeit durch ein zur Windschutzscheibe abgerundetes, insgesamt birnenförmiges Profil und durch eine Wandstärke 36 kleiner als 0,8 mm unterstützt. Die Wandstärke 36 ist vorteilhaft im dargestellten Ausführungsbeispiel gleichbleibend 0,6 mm, kann jedoch variiert werden.The protective profile 14 is made of an elastic plastic, namely of polypropylene and is adaptable to the curvature of the pane by elastic deformation. The protective profile 14 has an elongated hollow profile with two side walls 24, 26 surrounding the wiper strip 12, which is fastened to the wiper strip 12 in the region of a tilting web 88 with claw-like projections 84, 86 and tapers from the wiper strip 12 in the direction of the windshield (FIG. 2). Each side wall 24, 26 has two turning points 28, 30, 32, 34, which Create clauses for elastic deformation and promote this. Several turning points are also possible, for example corrugated side walls. Furthermore, the elastic deformability is supported by an overall pear-shaped profile which is rounded off from the windshield and by a wall thickness 36 of less than 0.8 mm. The wall thickness 36 is advantageously constant in the exemplary embodiment shown, 0.6 mm, but can be varied.
Während das Schutzprofil 14 extrudiert wird, wird gleichzeitig das Wischelement 16 an das Schutzprofil 14 extrudiert, so daß das Wischelement 16 über eine chemische Verbindung am Schutzprofil 14 befestigt ist. Durch dieses Verfahren wird ohne besonderen Aufwand eine gute Verbindung erzielt. Möglich ist jedoch, das Schutzprofil und das Wischelement kraftschlüssig, formschlüssig und/oder stoffschlüssig zu verbinden, beispielsweise durch Stecken, Kleben, Schweißen usw. Das Wischelement 16 ist aus einem thermoplastischen Elastomer, d.h. aus einer Verbindung von einem Thermoplasten und einem Elastomer. Das Wischelement 16 besitzt eine nahezu quadratische Querschnittsfläche und ist aufgrund der Materialanhäufung widerstandsfähig gegen Umwelteinflüsse und insbesondere Wärmeeinwirkung. Ein gleicher Effekt wird mit einem trapezförmigen Wischelement 18 erreicht, wie in Fig. 3. In den Fig. 4 und 5 sind Schutzprofile 14 mit Wischelementen 20, 22 dargestellt, die sich auf der dem Schutzprofil 14 zugewandten Seite aus einem trapezförmigen Bereich 38, 40 und auf der der Windschutzscheibe zugewandten Seite aus einem rechteckigen Bereich 42, 44 zusammensetzen. Beide Wischelemente 20, 22 sind hoch ausgeführt, so daß beim Wischen über die Windschutzscheibe deren Umlegevorgang günstig zur Anpassung an Krümmungen der Windschutzscheibe genutzt werden kann, zusätz¬ lich zur elastischen Verformung des Schutzprofils 14. Gleich- bleibende Bauteile werden grundsätzlich mit den gleichen Bezugszeichen beziffert. Mit dem trapezförmigen Bereich 38, 40, der in Fig. 4 höher als in Fig. 5 ausgeführt ist, wird eine große Verbindungsfläche zwischen dem Schutzprofil 14 und dem Wischelement 20 und 22 erreicht und eine sichere Verbindung ermöglicht. Ferner wird in oberen, durch Biegespannungen stärker belasteten Bereichen eine hohe Wärmebeständigkeit erzielt.While the protective profile 14 is being extruded, the wiping element 16 is simultaneously extruded onto the protective profile 14, so that the wiping element 16 is fastened to the protective profile 14 via a chemical compound. With this method, a good connection is achieved without any special effort. However, it is possible to connect the protective profile and the wiping element in a force-locking, form-fitting and / or material-locking manner, for example by plugging, gluing, welding, etc. The wiping element 16 is made of a thermoplastic elastomer, ie a combination of a thermoplastic and an elastomer. The wiping element 16 has an almost square cross-sectional area and, due to the material accumulation, is resistant to environmental influences and in particular heat. The same effect is achieved with a trapezoidal wiping element 18, as in FIG. 3. FIGS. 4 and 5 show protective profiles 14 with wiping elements 20, 22 which, on the side facing the protective profile 14, consist of a trapezoidal area 38, 40 and assemble on the side facing the windshield from a rectangular area 42, 44. Both wiping elements 20, 22 are running high, so that can be used when wiping the windshield whose Umlegevorgang favorable to adapt to curvatures of the windshield, zusätz ¬ lich for the elastic deformation of the protection profile 14. DC permanent components are always numbered with the same reference numerals. With the trapezoidal area 38, 40, which is higher in FIG. 4 than in FIG. 5, a large connecting area between the protective profile 14 and the wiping element 20 and 22 is achieved and a secure connection is made possible. In addition, high heat resistance is achieved in the upper areas, which are more strongly stressed by bending stresses.
Fig. 6 zeigt einen vergrößerten Ausschnitt VI in Fig. 1. Das Schutzprofil 14 ist in Längsrichtung an beiden Enden mit einem Kunststoffdeckel 56 verschlossen. Der Deckel 56 ist auf das Schutzprofil 14 aufgesteckt und mit diesem kraftschlüssig über drei an der Innenseite 72 des Schutzprofils 14 anliegen- den Zapfen 66, 68, 70 und über einen auf einer Deckseite 74 des Schutzprofils 14 aufliegenden Bund 76 lösbar verbunden (Fig. 7, 8 und 9) . Das Schutzprofil 14 ist verliersicher am Wischblatt befestigt, die Wischleiste 12 ist seitlich von Umwelteinflüssen geschützt und das Schutzprofil 14 ist mit den Deckeln 56 leicht zu montieren und zu demontieren. Insbesondere kann ein beidseitig verschlossenes Schutzprofil 14 mit zumindest einem Deckel 56 nach der Demontage wiederverwendet werden. Ferner wird durch den Deckel 56 die Elastizität des Schutzprofils 14 nur unwesentlich beeinflußt, der nur teil- weise an diesem anliegt. Die Seitenwangen 24, 26 können bei einer elastischen Verformung des Schutzprofils 14 nach innen ausweichen, ohne vom Deckel 56 behindert zu werden (Fig. 7) .FIG. 6 shows an enlarged detail VI in FIG. 1. The protective profile 14 is closed in the longitudinal direction at both ends with a plastic cover 56. The cover 56 is placed on the protective profile 14 and releasably connected to it by means of three pins 66, 68, 70, which bear against the inside 72 of the protective profile 14, and via a collar 76 resting on a cover side 74 of the protective profile 14 (FIG. 7 , 8 and 9). The protective profile 14 is securely attached to the wiper blade, the wiper strip 12 is laterally protected from environmental influences and the protective profile 14 is easy to assemble and disassemble with the covers 56. In particular, a protective profile 14 closed on both sides with at least one cover 56 can be reused after dismantling. Furthermore, the elasticity of the protective profile 14, which only partially abuts against it, is only slightly influenced by the cover 56. When the protective profile 14 is elastically deformed, the side cheeks 24, 26 can deflect inwards without being obstructed by the cover 56 (FIG. 7).
In Fig. 10, 11 und 12 ist ein Schutzprofil 58 dargestellt, dessen Enden mit quer zur Längsrichtung nach innen gerichteten Vorsprüngen 62, 64 verschlossen sind. Die Vorsprünge 62, 64 sind vorzugsweise mit einer Ultraschallquelle in eine Seitenwange 60 des Schutzprofils 58 eingebracht. Die Länge 'des Vorsprungs 62, 64 nimmt in Richtung Windschutzscheibe ab, daß ein in etwa gleichbleibender Spalt 78 zwischen dem Vorsprung 62, 64 und der Seitenwange 26 entsteht, durch den die Wischleiste 12 bei der Montage und der Demontage zerstörungsfrei führbar ist (Fig. 11) . Die Vorsprünge 62, 64 verjüngen sich quer zur Längsrichtung und besitzen zur Stirnseite eine in Längsrichtung nach innen geneigte erste flachere Schräge 80 von 30°, die die Wischleiste 12 bei der Montage in Richtung des Spalts 78 lenkt und die Montage erleichtert (Fig. 12) . Ferner besitzen die Vorsprünge 62, 64 in Längsrichtung zurA protective profile 58 is shown in FIGS. 10, 11 and 12, the ends of which are closed with projections 62, 64 directed inwards transversely to the longitudinal direction. The projections 62, 64 are preferably introduced into a side cheek 60 of the protective profile 58 using an ultrasound source. The length ' of Projection 62, 64 decreases in the direction of the windshield so that an approximately constant gap 78 is formed between the projection 62, 64 and the side cheek 26, through which the wiper strip 12 can be guided non-destructively during assembly and disassembly (FIG. 11). The projections 62, 64 taper transversely to the longitudinal direction and have a first flatter bevel 80 of 30 ° inclined inwards in the longitudinal direction on the end face, which directs the wiper strip 12 in the direction of the gap 78 during assembly and facilitates the assembly (FIG. 12) , Furthermore, the projections 62, 64 have in the longitudinal direction
Innenseite eine zweite nach außen geneigte, steilere Schräge 82, von 10°, die einen festen Halt des Schutzprofils 58 während des Betriebs des Wischers auf der Wischleiste 12 sicherstellt und eine zerstörungsfreie Demontage erleichtert.On the inside, a second outward inclined, steeper slope 82 of 10 °, which ensures that the protective profile 58 is firmly held during operation of the wiper on the wiper strip 12 and facilitates non-destructive dismantling.
Durch die Vorsprünge 62, 64 ist das Schutzprofil 58 verliersicher und wiederverwendbar am Wischblatt befestigt und die Wischleiste 12 ist seitlich gegen Umwelteinflüsse geschützt. Die Vorsprünge 62, 64 erstrecken sich nur über einen kleinen Teil des Umfangs des Schutzprofils 58, so daß die elastische Verformbarkeit nur unwesentlich beeinträchtigt wird. By means of the projections 62, 64, the protective profile 58 is secured captively and reusably on the wiper blade and the wiper strip 12 is laterally protected against environmental influences. The projections 62, 64 extend only over a small part of the circumference of the protective profile 58, so that the elastic deformability is only insignificantly impaired.
Bezugszeichenreference numeral
10 Tragbugelsystem 50 Krallenbügel10 support system 50 claws
12 Wischleiste 52 Krallenbügel12 wiper strip 52 claw bracket
14 Schutzprofil 54 Haltekralle14 Protection profile 54 holding claw
16 Wischelement 56 Deckel16 wiping element 56 cover
18 Wischelement 58 Schutzprofil18 Wiping element 58 protection profile
20 Wischelement 60 Seitenwange20 wiping element 60 side cheek
22 Wischelement 62 Vorsprung22 wiping element 62 projection
24 Seitenwange 64 Vorsprung24 sidewalls 64 head start
26 Seitenwange 66 Zapfen26 side walls 66 pins
28 Wendepunkt 68 Zapfen28 turning point 68 cones
30 Wendepunkt 70 Zapfen30 turning point 70 cones
32 Wendepunkt 72 Innenseite32 turning point 72 inside
34 Wendepunkt 74 Deckseite34 turning point 74 deck side
36 Wandstärke 76 Bund36 wall thickness 76 fret
38 Bereich 78 Spalt38 area 78 gap
40 Bereich 80 Schräge40 area 80 slope
42 Bereich 82 Schräge42 area 82 slope
44 Bereich 84 Ansatz44 Area 84 Approach
46 Hauptbügel 86 Ansatz46 main bracket 86 extension
48 Zwischenbügel 88 Kippsteg 48 intermediate bracket 88 tilting bridge

Claims

Ansprüche Expectations
1. Wischblatt zum Reinigen von Scheiben an Kraftfahrzeugen mit einer von einem Tragbugelsystem (10) gehaltenen Wischleiste (12), die von einem Schutzprofil (14, 58) umgeben ist, an dem auf der der Scheibe zugewandten Seite ein Wischelement (16, 18, 20, 22) befestigt ist, dadurch gekennzeichnet, daß das Schutzprofil (14, 58) aus elastischem Material gebildet und durch elastische Verformung Krümmungen der Scheibe weitgehend anpaßbar ist.1. wiper blade for cleaning windows on motor vehicles with a wiper strip (12) held by a support bracket system (10), which is surrounded by a protective profile (14, 58), on which a wiper element (16, 18, 20, 22) is fixed, characterized in that the protective profile (14, 58) is formed from elastic material and curvatures of the pane can be largely adapted by elastic deformation.
2. Wischblatt nach Anspruch 1, dadurch gekennzeichnet, daß das Schutzprofil ■ (14, 58) ein Hohlprofil mit zwei Seitenwan- gen (24, 26, 60) aufweist, das sich von der Wischleiste (12) in Richtung Scheibe verjüngt und daß jede Seitenwange (24, 26, 60) einen oder mehrere Wendepunkte (28, 30, 32, 34) aufweist.2. Wiper blade according to claim 1, characterized in that the protective profile ■ (14, 58) has a hollow profile with two side walls (24, 26, 60) which tapers in the direction of the window from the wiper strip (12) and that each Sidewall (24, 26, 60) has one or more turning points (28, 30, 32, 34).
3. Wischblatt nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Schutzprofil (14, 58) auf der der Windschutzscheibe zugewandten Seite abgerundet ist .3. Wiper blade according to one of the preceding claims, characterized in that the protective profile (14, 58) is rounded on the side facing the windshield.
4. Wischblatt nach einem der vorhergehenden Ansprüche, da- durch gekennzeichnet, daß das Schutzprofil (14, 58) aus Kunststoff ist. 4. Wiper blade according to one of the preceding claims, characterized in that the protective profile (14, 58) is made of plastic.
5. Wischblatt nach Anspruch 4, dadurch gekennzeichnet, daß das Schutzprofil (14, 58) aus Polypropylen ist.5. Wiper blade according to claim 4, characterized in that the protective profile (14, 58) is made of polypropylene.
6. Wischblatt nach einem der vorhergehenden Ansprüche, da- durch gekennzeichnet, daß das Schutzprofil (14, 58) zumindest teilweise eine Wandstärke (36) kleiner als 0,8 mm aufweist.6. Wiper blade according to one of the preceding claims, characterized in that the protective profile (14, 58) at least partially has a wall thickness (36) less than 0.8 mm.
7. Wischblatt nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Wischelement (16, 18) einen trapezförmigen oder nahezu quadratischen Querschnitt aufweist.7. Wiper blade according to one of the preceding claims, characterized in that the wiper element (16, 18) has a trapezoidal or almost square cross section.
8. Wischblatt nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß sich die Querschnittsfläche des Wischele- ments (20, 22) auf der dem Schutzprofil (14) zugewandten Seite aus einem trapezförmigen Bereich (38, 40) und auf der der Scheibe zugewandten Seite aus einem rechteckigen Bereich (42, 44) zusammensetzt.8. Wiper blade according to one of claims 1 to 6, characterized in that the cross-sectional area of the wiper element (20, 22) on the side facing the protective profile (14) from a trapezoidal area (38, 40) and on that of the disc facing side is composed of a rectangular area (42, 44).
9. Wischblatt nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Wischelement (16, 18, 20, 22) aus einem thermoplastischen Elastomer ist.9. Wiper blade according to one of the preceding claims, characterized in that the wiper element (16, 18, 20, 22) is made of a thermoplastic elastomer.
10. Wischblatt nach einem der vorhergehenden Ansprüche, da- durch gekennzeichnet, daß das Schutzprofil (14) in Längsrichtung zumindest an einem Ende mit einem Deckel (56) verschlossen ist, mit dem das Schutzprofil (14) geöffnet und geschlossen werden kann.10. Wiper blade according to one of the preceding claims, characterized in that the protective profile (14) is closed in the longitudinal direction at least at one end with a cover (56) with which the protective profile (14) can be opened and closed.
11. Wischblatt nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Schutzprofil (58) zumindest an einem Ende mit einem quer zur Längsrichtung nach innen gerichteten Vorsprung (62, 64) verschlossen ist. 11. Wiper blade according to one of the preceding claims, characterized in that the protective profile (58) is closed at least at one end with a projection (62, 64) directed inwards to the longitudinal direction.
12. Wischblatt nach Anspruch 11, dadurch gekennzeichnet, daß in eine Seitenwange (60) des Schutzprofils (58) der Vorsprung (62, 64) angeformt ist. 12. Wiper blade according to claim 11, characterized in that in a side cheek (60) of the protective profile (58) the projection (62, 64) is integrally formed.
EP00952932A 1999-07-30 2000-07-13 Wiper blade for cleaning vehicle windscreen Expired - Lifetime EP1117574B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19935859 1999-07-30
DE19935859A DE19935859A1 (en) 1999-07-30 1999-07-30 Wiper blade for cleaning windows on motor vehicles
PCT/DE2000/002289 WO2001008947A1 (en) 1999-07-30 2000-07-13 Wiper blade for cleaning vehicle windscreen

Publications (2)

Publication Number Publication Date
EP1117574A1 true EP1117574A1 (en) 2001-07-25
EP1117574B1 EP1117574B1 (en) 2005-11-30

Family

ID=7916606

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00952932A Expired - Lifetime EP1117574B1 (en) 1999-07-30 2000-07-13 Wiper blade for cleaning vehicle windscreen

Country Status (7)

Country Link
US (1) US6647583B1 (en)
EP (1) EP1117574B1 (en)
JP (1) JP2003506243A (en)
KR (1) KR100712870B1 (en)
DE (2) DE19935859A1 (en)
ES (1) ES2252041T3 (en)
WO (1) WO2001008947A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10130939B4 (en) * 2001-06-27 2006-01-12 Robert Bosch Gmbh wiper strip
GB0219678D0 (en) * 2002-08-23 2002-10-02 Trico Ltd Improvements relating to blade protectors
DE102006036913A1 (en) * 2006-08-04 2008-02-07 Robert Bosch Gmbh Protective rail for wiper blades of a windshield wiper and method for its production
EP2008889A1 (en) * 2007-06-25 2008-12-31 Federal-Mogul S.A. Windscreen wiper device
EP2105362B2 (en) * 2008-03-28 2017-11-29 Federal-Mogul S.a. Wiper blade
DE202008016122U1 (en) * 2008-12-04 2010-04-15 Rehau Ag + Co Protective device for protecting a windshield wiper blade
US20160288772A1 (en) * 2015-03-31 2016-10-06 David Allen Stewart Adaptable interim repair jacket to supplant a failed windshield wiper structure of a motor vehicle
KR102559506B1 (en) * 2021-09-16 2023-07-26 김현국 Rubber for mounting wiper blade
WO2023195168A1 (en) * 2022-04-08 2023-10-12 株式会社三田 Wiper blade

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2926375A (en) * 1956-09-10 1960-03-01 Richard J Flynn Wiper blade
US3417421A (en) * 1967-03-20 1968-12-24 Dale O. Retke Windshield wiper attachment
US3828388A (en) * 1973-03-23 1974-08-13 J Fuhr Windshield wiper blade snow and ice scraper attachment
NL7409913A (en) * 1974-07-23 1976-01-27 Ott Robert Christiaan Windscreen wiper blade securing means - permitting it to be clamped on to existing wiper and its holder
DE3005965A1 (en) 1980-02-16 1981-09-03 Robert Bosch Gmbh, 7000 Stuttgart Wiper blade with an elongated wiper element held by a frame
JPS5835448U (en) * 1981-09-01 1983-03-08 日本ワイパブレ−ド株式会社 Protective cover for wiper
JPS59165259U (en) * 1983-04-22 1984-11-06 株式会社　三ツ葉電機製作所 Wiper blade protective cover
JPS61144078U (en) * 1985-02-26 1986-09-05
JPH0225355U (en) * 1988-08-08 1990-02-20
JPH02102859U (en) * 1989-02-01 1990-08-15
AU635591B2 (en) * 1990-01-08 1993-03-25 Acushnet Rubber Company, Inc. Windshield wiper blade
IT1260623B (en) * 1993-03-10 1996-04-22 Cooper Ind Inc PROFILE ELEMENT OF PROTECTION FOR WIPER BLADES.
FR2703313B1 (en) * 1993-03-31 1995-05-12 Valeo Systemes Dessuyage Wiping device.
FR2707941B1 (en) * 1993-07-22 1995-08-25 Valeo Systemes Dessuyage Protective device for wiper blade.
US5732436A (en) * 1995-08-21 1998-03-31 Feigenbaum; Jeffery J. Replacement wiper blade
JPH10236282A (en) * 1997-02-28 1998-09-08 Mitsubishi Motors Corp Wiper blade

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0108947A1 *

Also Published As

Publication number Publication date
JP2003506243A (en) 2003-02-18
DE19935859A1 (en) 2001-02-01
DE50011747D1 (en) 2006-01-05
WO2001008947A1 (en) 2001-02-08
ES2252041T3 (en) 2006-05-16
US6647583B1 (en) 2003-11-18
KR20010075415A (en) 2001-08-09
KR100712870B1 (en) 2007-05-02
EP1117574B1 (en) 2005-11-30

Similar Documents

Publication Publication Date Title
EP1846273B1 (en) Wiper blade of a windscreen wiper, provided with a protective rail
EP1117575B1 (en) Wiper blade for cleaning vehicle windscreens
EP1053145B1 (en) Wiper blade for window panes of motor vehicles
EP1547883B1 (en) Wiper blade for cleaning vehicle windscreens
EP1695881B1 (en) Wiper blade for cleaning vehicle windows
EP1597120B1 (en) Wiper blade for cleaning panes, in particular motor vehicle panes
DE3005965C2 (en)
WO2001092073A1 (en) Wiper blade for cleaning screens in particular on motor vehicles
DE19856299A1 (en) Hinged device for connection of wiper blade to windscreens of motor vehicles has wind deflector strip on upper surface of support element that extends on both sides of connecting element in blade's longitudinal direction
WO2000034089A1 (en) Wiper blade for automobile glass panels
DE10034475A1 (en) Windscreen wiper has protective profile with inward-facing lips at top which fit into longitudinal grooves in wiper strip, strip being held at end by lugs on profile, one of which reaches across whole width of profile while other leaves gap
DE10044913B4 (en) Wiper blade for cleaning windows, especially motor vehicles
DE3222864A1 (en) Wiper blade for windscreen wiper systems of vehicles, in particular motor vehicles, and method of manufacture thereof
DE19627113A1 (en) Wiper blade for windshield wiper systems of motor vehicles
EP1117574A1 (en) Wiper blade for cleaning vehicle windscreen
DE19720095A1 (en) Wiper blade for windows of motor vehicles
DE19641042A1 (en) Wiper blade for windows of motor vehicles
DE10130939B4 (en) wiper strip
EP1412235A1 (en) Wiper blade
DE10000375A1 (en) Wiper blade for vehicle windscreen wiper; has wiper strip made of elastic rubber material and support bar made of springy elastic material attached to wiper strip by injection moulding
DE10014753A1 (en) Windscreen wiper rubber protection comprises a hollow profiled section open along one edge, and a soft lip section.
DE102011077516A1 (en) Wiper blade for cleaning windows, especially of motor vehicles
DE4230638A1 (en) Windscreen wiper blade and arm for vehicle wiper system - arm has claw-shaped sections which grip back profile of blade element
EP0240896B1 (en) Windshield wiper provided with open aerodynamic bridge members
DE10333082A1 (en) Windscreen wiper blade for motor vehicles has surface of spring rail coated at least in region of adaptor fastening, whereby plastic surface of adaptor is friction welded to coated spring rail

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17P Request for examination filed

Effective date: 20010808

RBV Designated contracting states (corrected)

Designated state(s): BE DE ES FR GB IT

17Q First examination report despatched

Effective date: 20041105

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE ES FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 50011747

Country of ref document: DE

Date of ref document: 20060105

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060313

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2252041

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20060831

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20190723

Year of fee payment: 20

Ref country code: FR

Payment date: 20190724

Year of fee payment: 20

Ref country code: ES

Payment date: 20190822

Year of fee payment: 20

Ref country code: DE

Payment date: 20190924

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20190722

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20190725

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 50011747

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20200712

REG Reference to a national code

Ref country code: BE

Ref legal event code: MK

Effective date: 20200713

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20201028

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20200712

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20200714